edgar: Platform for EDGAR Filing Management and Textual Analysis

In the USA, companies file different forms with the U.S.
Securities and Exchange Commission (SEC) through EDGAR (Electronic
Data Gathering, Analysis, and Retrieval system). The EDGAR
database automated system collects all the different necessary
filings and makes it publicly available. Investors, regulators,
and researchers often require these forms for various purposes.
This package helps in bulk data gathering and textual analysis of
EDGAR filings. It downloads filings from SEC server in bulk with
a single query. Additionally, it provides various useful functions:
extracts 8-K triggering events, extract "Business (Item 1)" and
"Management's Discussion and Analysis(Item 7)" sections of annual
statements, search filings for desired words, provides sentiment
measures, parse filing header information, and provides HTML
view of SEC filings.